package com.sudo.api;

import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;

/**
 * @author 为道日损 2020-07-02 20:27
 * webSite：https://www.sudo.ren
 */
public class Env {
    public static void main(String[] args) throws UnknownHostException {
        Properties props=System.getProperties();
        InetAddress inetAddress = InetAddress.getLocalHost();
        System.out.println(inetAddress.getHostAddress());
        System.out.println(inetAddress.getHostName());
        System.out.println("Java的运行环境版本："+props.getProperty("java.version"));
        System.out.println("Java的运行环境供应商："+props.getProperty("java.vendor"));
        System.out.println("Java供应商的URL："+props.getProperty("java.vendor.url"));
        System.out.println("Java的安装路径："+props.getProperty("java.home"));
        System.out.println("Java的虚拟机规范版本："+props.getProperty("java.vm.specification.version"));
        System.out.println("Java的虚拟机规范供应商："+props.getProperty("java.vm.specification.vendor"));
        System.out.println("Java的虚拟机规范名称："+props.getProperty("java.vm.specification.name"));
        System.out.println("Java的虚拟机实现版本："+props.getProperty("java.vm.version"));
        System.out.println("Java的虚拟机实现供应商："+props.getProperty("java.vm.vendor"));
        System.out.println("Java的虚拟机实现名称："+props.getProperty("java.vm.name"));
        System.out.println("Java运行时环境规范版本："+props.getProperty("java.specification.version"));
        System.out.println("Java运行时环境规范供应商："+props.getProperty("java.specification.vender"));
        System.out.println("Java运行时环境规范名称："+props.getProperty("java.specification.name"));
        System.out.println("Java的类格式版本号："+props.getProperty("java.class.version"));
        System.out.println("Java的类路径："+props.getProperty("java.class.path"));
        System.out.println("加载库时搜索的路径列表："+props.getProperty("java.library.path"));
        System.out.println("默认的临时文件路径："+props.getProperty("java.io.tmpdir"));
        System.out.println("一个或多个扩展目录的路径："+props.getProperty("java.ext.dirs"));
        System.out.println("操作系统的名称："+props.getProperty("os.name"));
        System.out.println("操作系统的构架："+props.getProperty("os.arch"));
        System.out.println("操作系统的版本："+props.getProperty("os.version"));
        System.out.println("文件分隔符："+props.getProperty("file.separator"));   //在 unix 系统中是＂／＂
        System.out.println("路径分隔符："+props.getProperty("path.separator"));   //在 unix 系统中是＂:＂
        System.out.println("行分隔符："+props.getProperty("line.separator"));   //在 unix 系统中是＂/n＂
        System.out.println("用户的账户名称："+props.getProperty("user.name"));
        System.out.println("用户的主目录："+props.getProperty("user.home"));
        System.out.println("用户的当前工作目录："+props.getProperty("user.dir"));

        Map<String, String> map = new HashMap<>();
        map.put("os.name", "my Phone");
        map.put("os.version", "hahah");

//        LocalDate s = LocalDate.parse("2022-10-29");
//        LocalDate e = LocalDate.parse("2022-03-27");
//        long l = e.toEpochDay() - s.toEpochDay();
//        System.out.println(l);

//        LocalDateTime localDateTime = LocalDateTime.now().withSecond(0);
//        LocalDateTime localDateTime1 = LocalDateTime.of(2022, 9, 12, 23, 4, 0);
//        long until = localDateTime1.until(localDateTime, ChronoUnit.DAYS);
//        System.out.println("until = " + until);
//        long until1 = localDateTime1.plusDays(until).until(localDateTime, ChronoUnit.HOURS);
//        System.out.println("until1 = " + until1);
//        long until2 = localDateTime1.plusDays(until).plusHours(until1).until(localDateTime, ChronoUnit.MINUTES);
//        System.out.println("until2 = " + until2);
    }
}
